Academic literature on the topic 'Servo ventilator'

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Journal articles on the topic "Servo ventilator"

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Tomasello, Philip A., Judith A. Culpepper, and Michael J. Buran. "Assisted Mechanical Ventilation with the Servo Ventilator." Chest 88, no. 5 (1985): 799–800. http://dx.doi.org/10.1378/chest.88.5.799-c.

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Marini, John J., John S. Capps, and Bruce H. Culver. "Assisted Mechanical Ventilation with the Servo Ventilator." Chest 88, no. 5 (1985): 800. http://dx.doi.org/10.1378/chest.88.5.800.

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Bersten, A. D., A. J. Rutten, and A. E. Vedig. "Efficacy of Pressure Support in Compensating for Apparatus Work." Anaesthesia and Intensive Care 21, no. 1 (1993): 67–71. http://dx.doi.org/10.1177/0310057x9302100116.

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Breathing through an endotracheal tube, connector, and ventilator demand valve imposes an added load on the respiratory muscles. As respiratory muscle fatigue is thought to be a frequent cause of ventilator dependence, we sought to examine the efficacy of five different ventilators in reducing this imposed work through the application of pressure support ventilation. Using a model of spontaneous breathing, we examined the apparatus work imposed by the Servo 900-C, Puritan Bennett 7200a, Engstrom Erica, Drager EV-A or Hamilton Veolar ventilators, a size 7.0 and 8.0 mm endotracheal tube, and inspiratory flow rates of 40 and 60 l/min. Pressure support of 0, 5, 10, 15, 20 and 30 cm H2O was tested at each experimental condition. Apparatus work was greater with increased inspiratory flow rate and decreased endotracheal tube size, and was lowest for the Servo 900-C and Puritan Bennett 7200a ventilators. Apparatus work fell in a curvilinear fashion when pressure support was applied, with no major difference noted between the five ventilators tested. At an inspiratory flow rate of 40 l/min, a pressure support of 5 and 8 cm H2O compensated for apparatus work through size 8.0 and 7.0 endotracheal tubes and the Servo 900-C and Puritan Bennett 7200a ventilators. However, the maximum negative pressure was greater for the Servo 900-C. The added work of breathing through endotracheal tubes and ventilator demand valves may be compensated for by the application of pressure support. The level of pressure support required depends on inspiratory flow rate, endotracheal tube size, and type of ventilator.
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Bersten, A. D., G. A. Skowronski, and T. E. Oh. "New Generation Ventilators." Anaesthesia and Intensive Care 14, no. 3 (1986): 293–305. http://dx.doi.org/10.1177/0310057x8601400309.

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Desirable features of new generation intensive care ventilators include the ability to ventilate a wide range of patient sizes, an uncomplicated control panel, an appropriate but not excessive variety of ventilatory patterns, adequate patient monitoring and alarm functions, and simplicity of cleaning and routine maintenance. Examples of currently available ventilators include the Servo 900-C, CPU-1, Engstrom Erica, Bear 5, Drager EV-A and Hamilton Veolar. The incorporation of microcomputer control into some of these ventilators has resulted in improved flexibility and a limited number of automatic responses to detected patient changes. However, the function of components provided to allow spontaneous ventilation, such as demand valves, requires considerable improvement. Current trends in ventilator design include further refinement of computer control and the provision of graphic displays showing the results of continuous sophisticated analysis of respiratory function. The extent to which these developments will prove clinically useful will require careful evaluation.
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Biggart, M. J., and R. E. Bullock. "Assisted ventilation and the Servo ventilator in infants." Anaesthesia 41, no. 7 (1986): 762–63. http://dx.doi.org/10.1111/j.1365-2044.1986.tb12858.x.

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Bingham, R., and D. J. Hatch. "Assisted ventilation and the Servo ventilator in infants." Anaesthesia 41, no. 7 (1986): 763. http://dx.doi.org/10.1111/j.1365-2044.1986.tb12859.x.

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Bingham, R. M., D. J. Hatch, and P. J. Helms. "Assisted ventilation and the Servo ventilator in infants." Anaesthesia 41, no. 2 (1986): 168–72. http://dx.doi.org/10.1111/j.1365-2044.1986.tb13174.x.

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Aerts, J. G. J. V., B. Van Den Berg, and J. M. Bogaard. "Ventilator-CPAP with the Siemens Servo 900C Compared with Continuous Flow-CPAP in Intubated Patients: Effect on Work of Breathing." Anaesthesia and Intensive Care 25, no. 5 (1997): 487–92. http://dx.doi.org/10.1177/0310057x9702500506.

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The effects of continuous positive airway pressure (CPAP) provided by the Siemens Servo 900C ventilator were compared with a continuous flow system (CF-CPAP) in patients weaning from the ventilator. Thirteen patients were studied using both systems at a CPAP level of 0.5 kPa. Additional work of breathing (Wapp) and derived variables were determined in relation to the minute volumes of the patients. The Wapp imposed by the ventilator exceeded the Wapp of CF-CPAP in all patients. The difference in Wapp between ventilator- and CF-CPAP was greater at higher ventilatory needs. The increments in Wapp imposed by the ventilator were positively correlated with the actual end-expiratory pressures (EEP). The EEP increasingly exceeded the preset CPAP level of the ventilator at higher minute volumes. An inspiratory threshold due to a gradient between EEP and preset CPAP greatly increased the Wapp imposed by the ventilator. As this threshold was attributed to the resistance of the PEEP device of the ventilator, it indicates that the additional work related to the expiratory valve should be taken into account when the Siemens Servo 900C ventilator is used for weaning purposes.
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Ginosar, Yehuda, and Dimitry Baranov. "Prolonged “Phantom” Square Wave Capnograph Tracing after Patient Disconnection or Extubation." Anesthesiology 86, no. 3 (1997): 729–35. http://dx.doi.org/10.1097/00000542-199703000-00026.

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Background The authors report on the appearance of misleading square wave "phantom" capnograph tracings for approximately 3 min after disconnection from the Siemens Servo 900c ventilator. A series of experiments are described to examine the mechanism of this phenomenon. Methods Patients were ventilated using the Siemens Servo 900c ventilator with the following settings: minute volume, 5 1/min; respiratory rate, 8 breaths/min; PEEP, 0 cm H2O; trigger sensitivity, 20 cm H2O. The ventilator was connected to the Siemens Servo Evac 180 evacuation system (25 1/min on evacuation flowmeter). Airway pressure and capnography were recorded at the Y piece during ventilation and after disconnection. A back-up ventilator was used to support the patient during disconnection of the ventilator being studied. Results Initially, the "phantom" capnograph tracing closely resembled the square wave capnograph tracing before disconnection, but the amplitude and shape of the waveform gradually decayed. Based on experiments described in this article, the authors show that the carbon dioxide for the "phantom" capnograph tracing comes from the gas exhaled by the patient in the last breaths before disconnection and which is present in both the expiratory tubing and in the evacuation system. The small pressure gradient between the exhaust reservoir and the atmosphere causes reverse flow of expired gas after disconnection, when both the nonreturn flap valve at the exhaust outlet is open (due to minimal valve incompetence) and when the expiratory servo valve is open (in the absence of positive end-expiratory pressure). This continuous reverse flow is detected by the capnograph but is interrupted intermittently by each attempted positive pressure ventilation, thereby creating a "phantom" capnograph. Conclusions After accidental disconnection of the patient from the breathing system, or after accidental extubation of the trachea, the "phantom" capnograph is likely to confuse even an experienced anesthesiologist into the mistaken belief that his rapidly deteriorating patient is being ventilated adequately. Several potential mechanisms to eliminate this phenomenon are outlined, including the avoidance of zero positive end-expiratory pressure. "Phantom" capnography provides an illustration of the dangers of using monitoring techniques, however reliable, as a substitute for vigilant clinical observation.
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Nishimura, Masaji, Dean Hess, Robert M. Kacmarek, Ray Ritz, and William E. Hurford. "Nitrogen Dioxide Production during Mechanical Ventilation with Nitric Oxide in Adults." Anesthesiology 82, no. 5 (1995): 1246–54. http://dx.doi.org/10.1097/00000542-199505000-00020.

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Background Inhaled nitric oxide (NO) may be useful in the treatment of adult respiratory distress syndrome and other diseases characterized by pulmonary hypertension and hypoxemia. NO is rapidly converted to nitrogen dioxide (NO2) in oxygen (O2) environments. We hypothesized that in patients whose lungs are mechanically ventilated and in those with a long residence time for NO in the lungs, a clinically important [NO2] may be present. We therefore determined the rate constants for NO conversion in adult mechanical ventilators and in a test lung simulating prolonged intrapulmonary residence of NO. Methods NO (800 ppm) was blended with nitrogen (N2), delivered to the high-pressure air inlet of a Puritan-Bennett 7200ae or Siemens Servo 900C ventilator, and used to ventilate a test lung. The ventilator settings were varied: minute ventilation (VE) from 5 to 25 l/min, inspired O2 fraction (FIO2) from 0.24 to 0.87, and [NO] from 10 to 80 ppm. The experiment was then repeated with air instead of N2 as the dilution gas. The effect of pulmonary residence time on NO2 production was examined at test lung volumes of 0.5-4.0 l, VE of 5-25 l/min, FIO2 of 0.24-0.87, and [NO] of 10-80 ppm. The inspiratory gas mixture was sampled 20 cm from the Y-piece and from within the test lung. NO and NO2 were measured by chemiluminescence. The rate constant (k) for the conversion of NO to NO2 was determined from the relation 1/[NO]t-1/[NO]o = k x [O2] x t, where t = residence time. Results No NO2 was detected during any trial with VE 20 or 25 l/min. With N2 dilution and the Puritan-Bennett 7200ae, NO2 (< or = 1 ppm) was detected only at a VE of 5 l/min with an FIO2 of 0.87 and [NO] > or = 70 ppm. In contrast, [NO2] values were greater with the Servo 900C ventilator than with the Puritan-Bennett 7200ae at similar settings. When NO was diluted with air, clinically important [NO2] values were measured with both ventilators at high [NO] and FIO2. Rate constants were 1.46 x 10(-9) ppm-2.min-1 when NO was mixed with N2, 1.17 x 10(-8) ppm-2.min-1 when NO was blended with air, and 1.44 x 10(-9) ppm-2.min-1 in the test lung. Conclusions [NO2] increased with increased FIO2 and [NO], decreased VE, blending with air, and increased lung volumes. Higher [NO2] was produced with the Servo 900C ventilator than the Puritan-Bennett 7200ae because of the greater residence time. With long intrapulmonary residence times for NO, there is a potential for NO2 production within the lungs. The rate constants determined can be used to estimate [NO2] in adult mechanical ventilation systems.
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Dissertations / Theses on the topic "Servo ventilator"

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BRUNEAU, BEATRICE. "Comparaison de l'aide inspiratoire delivree par trois ventilateurs : servo 900 c siemens, bennett 7200, cesar air liquide." Lyon 1, 1989. http://www.theses.fr/1989LYO1M413.

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Hernandez, A. V., Adrian V. Hernandez, Anne Jeon, et al. "Use of adaptive servo ventilation therapy as treatment of sleep-disordered breathing and heart failure: a systematic review and meta-analysis." Springer, 2020. http://hdl.handle.net/10757/651733.

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Purpose: Adaptive servoventilation (ASV) has been reported to show improvement in patients with sleep-disordered breathing (SDB) and heart failure (HF); however, its role as a second-line or adjunctive treatment is not clear. We conducted a systematic review and meta-analysis of new existing data including cardiac mechanistic factor, geometry, and cardiac biomarkers. Methods: We systematically searched for randomized controlled trials (RCTs) and cohort studies that assessed the efficacy or effectiveness of ASV compared to conventional treatments for SDB and HF in five research databases from their inception to November 2018. Random-effects meta-analyses using the inverse variance method and stratified by study design were performed. Results: We included 15 RCTs (n = 859) and 5 cohorts (n = 162) that met our inclusion criteria. ASV significantly improved left ventricular ejection fraction (LVEF) in cohorts (MD 6.96%, 95% CI 2.58, 11.34, p = 0.002), but not in RCTs. Also, the ASV group had significantly lower apnea-hypopnea index (AHI) in both cohorts (MD − 26.02, 95% CI − 36.94, − 15.10, p < 0.00001) and RCTs (MD − 21.83, 95% CI − 28.17, − 15.49, p < 0.00001). ASV did not significantly decrease the E/e′ ratio in RCTs or in cohorts. Finally, ASV significantly decreased brain natriuretic peptide (BNP) in the cohorts (SMD − 121.99, CI 95% − 186.47, − 57.51, p = 0.0002) but not in RCTs. ASV did not have a significant effect on systolic blood pressure, diastolic blood pressure, and cardiac diameters. Conclusions: ASV therapy is associated with improvements of AHI in comparison to alternative treatments in patients with SDB and HF. ASV did not improve LVEF or E/e′ ratios in randomized trials; other intermediate outcomes did not improve significantly.<br>Revisión por pares
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Priefert, Hans-Jörg [Verfasser], and Michael [Akademischer Betreuer] Arzt. "Effekte einer Adaptiven Servo-Ventilation auf Herzrhythmusstörungen bei Patienten mit chronischer Herzinsuffizienz und schlafbezogenen Atmungsstörungen – Subanalyse einer randomisierten Studie / Hans-Jörg Priefert ; Betreuer: Michael Arzt." Regensburg : Universitätsbibliothek Regensburg, 2016. http://d-nb.info/1118846273/34.

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Books on the topic "Servo ventilator"

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Kahn, Jeremy M. The Role of Long-Term Ventilator Hospitals. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199653461.003.0004.

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Long-term ventilator facilities play an increasingly important role in the care of chronically critically ill patients in the recovery phase of their acute illness. These hospitals can take several forms, depending on the country and health system, including �step-down� units within acute care hospitals and dedicated centres that specialize in weaning patients from prolonged mechanical ventilation. These hospitals may improve outcomes through increased clinical experience at applying protocolized weaning approaches and specialized, multidisciplinary, rehabilitation-focused care; they may also worsen outcomes by fragmenting the episode of acute care across multiple hospitals, leading to communication delays and hardship for families. Long-term ventilator facilities may also have important �spillover effects�, in that they free ICU beds in acute care hospitals to be filled with greater numbers of acute critically ill patients. Current evidence suggests that mortality of chronically critically ill patients is equivalent between acute care hospitals and specialized weaning centres; however, mechanical ventilation may be longer and cost of care higher in patients who remain in acute care hospitals. Given the rising incidence of prolonged mechanical ventilation and capacity constraints on acute care ICUs, long-term ventilator hospitals are likely to serve a key function in critical illness recovery.
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Junna, Mithri R., Bernardo J. Selim, and Timothy I. Morgenthaler. Central sleep apnea and hypoventilation syndromes. Edited by Sudhansu Chokroverty, Luigi Ferini-Strambi, and Christopher Kennard. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199682003.003.0018.

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Sleep disordered breathing (SDB) may occur in a variety of ways. While obstructive sleep apnea is the most common of these, this chapter reviews the most common types of SDB that occur independently of upper airway obstruction. In many cases, there is concurrent upper airway obstruction and neurological respiratory dysregulation. Thus, along with attempts to correct the underlying etiologies (when present), stabilization of the upper airway is most often combined with flow generators (noninvasive positive pressure ventilation devices) that modulate the inadequate ventilatory pattern. Among these devices, when continuous positive airway pressure (CPAP) alone does not allow correction of SDB, adaptive servo-ventilation (ASV) is increasingly used for non-hypercapnic types of central sleep apnea (CSA), while bilevel PAP in spontaneous-timed mode (BPAP-ST) is more often reserved for hypercapnic CSA/alveolar hypoventilation syndromes. Coordination of care among neurologists, cardiologists, and sleep specialists will often benefit such patients.
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Nielsen, Niklas, and David B. Seder. Non-pharmacological neuroprotection in the ICU. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0230.

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After control of the primary process causing acute neurological injury, further control of secondary injury pathways can be achieved by manipulating brain temperature, and achieving biochemical and metabolic homeostasis. Surgical techniques are routinely used to remove blood or trapped cerebrospinal fluid, control mass effect, or repair unstable vascular abnormalities. Therapeutic temperature management to a defined target can be achieved and maintained using cold fluids, ice packs, body surface cooling pads, and surface and intravascular devices with servo (feedback) mechanisms. Successful temperature management requires attentive surveillance and control of shivering and other potential complications, such as bleeding, infection, cardiac arrhythmias, and electrolyte and metabolic disturbances. Extremes of oxygenation and ventilation are associated with worse long-term functional outcomes, and should be avoided.
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Pevernagie, Dirk. Positive airway pressure therapy. Edited by Sudhansu Chokroverty, Luigi Ferini-Strambi, and Christopher Kennard. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199682003.003.0017.

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This chapter describes positive airway pressure (PAP) therapy for sleep disordered breathing. Continuous PAP (CPAP) acts as a mechanical splint on the upper airway and is the treatment of choice for moderate to severe obstructive sleep apnea (OSA). Autotitrating CPAP may be used when the pressure demand for stabilizing the upper airway is quite variable. In other cases, fixed CPAP is sufficient. There is robust evidence that CPAP reduces the symptomatic burden and risk of cardiovascular comorbidity in patients with moderate to severe OSA. Bilevel PAP is indicated for treatment of respiratory diseases characterized by chronic alveolar hypoventilation, which typically deteriorates during sleep. Adaptive servo-ventilation is a mode of bilevel PAP used to treat Cheyne–Stokes respiration with central sleep apnea . It is crucial that caregivers help patients get used to and be compliant with PAP therapy. Education, support, and resolution of adverse effects are mandatory for therapeutic success.
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Knape, Hans. The roles and responsibilities of the anaesthesiologist. Edited by Philip M. Hopkins. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199642045.003.0032.

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Anaesthesia, being a relatively young medical specialty, has undergone a process of metamorphosis in the last 60 years. Modern principles of pathophysiology, technical developments, and new pharmacological principles have enhanced the potential of anaesthesia in the operating room, causing several subspecialties to develop. These subspecialties have enabled anaesthesiologists to better serve groups of patients with particular challenges and specific demands. The competences of anaesthesiologists in the pathophysiology of pain, pharmacology, and regional anaesthesia techniques enabled them to take the lead in the development of pain clinics, especially serving the increasing population of patients with chronic pain syndromes, often in close collaboration with experts from other disciplines. A similar development occurred in critical care medicine based on the expertise of anaesthesiologists in ventilatory and circulatory management and also in emergency medicine. With their overview of anaesthesia, intensive care medicine, and emergency medicine, anaesthesiologists are now in a position to lead in the whole perioperative process, not only in the medical management of individual patients but also in the logistic and organizational aspects of care. With further developments in information technology, in telemedicine, and rapid changes in society, with the increased demand of care in times of limited financial resources, a strong appeal will be made to anaesthesiologists to show leadership and cross boundaries. An increased focus on teamwork with surgeons, non-medical professionals, but also with managers and insurance companies in healthcare may open new horizons for the specialty of anaesthesiology and perioperative medicine.
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Book chapters on the topic "Servo ventilator"

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Firestone, Kimberly, Miray Kärnekull, Edita Almonte, and Howard Stein. "Servo Ventilator Systems." In Manual of Neonatal Respiratory Care. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93997-7_49.

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Beck, Jennifer, Louis Fuentes, and Howard McDonald. "SERVO-i Ventilator and NAVA." In Manual of Neonatal Respiratory Care. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39839-6_50.

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Beck, Jennifer, and Louis Fuentes. "SERVO-i Ventilator and Neurally Adjusted Ventilatory Assist (NAVA)." In Manual of Neonatal Respiratory Care. Springer US, 2012. http://dx.doi.org/10.1007/978-1-4614-2155-9_45.

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Thomas, Robert J. "Adaptive Servo Ventilation." In Atlas of Sleep Medicine. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34625-5_33.

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Maeno, Ken-ichi, and Takatoshi Kasai. "New Adaptive Servo-Ventilation Device for Cheyne–Stokes Respiration." In Noninvasive Mechanical Ventilation. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11365-9_15.

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Dellweg, Dominic, Markus Wenzel, and Jens Kerl. "Results of Servo-ventilation and Other Ventilatory Modes in Sleep Apnea Syndrome: Key Topics and Practical Implications." In Noninvasive Mechanical Ventilation. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-21653-9_78.

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Offtermatt, David, Daniel Lust, and Tobias Erhart. "Box-Type Windows as Means for Better Air Quality and Acoustic Comfort in Urban Areas." In iCity. Transformative Research for the Livable, Intelligent, and Sustainable City. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92096-8_21.

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AbstractControlled natural ventilation in office buildings can ensure the indoor thermal comfort while reducing the life cycle energy consumption for ventilation, compared to mechanical ventilation systems (e.g. HVAC). Natural ventilation is mostly used in moderate climate zones where air conditioning is not a standard. During intermediate seasons, buildings with HVAC systems can additionally use natural ventilation to reduce energy consumption. However, in dense urban areas, natural ventilation can be problematic in terms of acoustic comfort. Here, a box-type window can serve as a compromise between thermal and acoustic comfort. Due to the more complex handling of the box-type window, an automated (electric driven) novel box-type window approach was developed within the imaF project, a part of the iCity initiative. The following article describes the basics of automated natural ventilation, acoustic characterization as well as architectural integration of this window type and the optimization of the airflow through box-type windows. The results show that the proposed geometry can provide sound insulation while providing an appropriate air exchange rate.
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Hu, Wen-Hsin, and Michael C. K. Khoo. "Treatment of Cheyne-Stokes Respiration in Heart Failure with Adaptive Servo-Ventilation: An Integrative Model." In Advances in the Diagnosis and Treatment of Sleep Apnea. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06413-5_6.

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Raimondi, Alberto, and Laura Rosini. "Adaptive “Velari”." In The Urban Book Series. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-29515-7_70.

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AbstractAs it is known, the global phenomenon of rising temperatures causes uncomfortable and often harmful conditions for human beings living in moderate-climate zones, such as the Mediterranean area, especially in the hottest periods. Examinations of metropolitan cities can witness that high temperatures generate Urban Heat Island (UHI), due to population, buildings, vehicles and human activities in general. With the increase of rising temperatures in the latest decades, people living in big cities have gotten used to tackling heat discomfort with electricity charged cooling systems. As a result, the energy consumption for air-conditioning causes UHIs’ effects to further grow. It is scientifically confirmed that the behavioral habit of relying on artificially generated cold whenever temperatures rise will eventually make the climate crisis more problematic in the near future. Energy communities are used to producing, storing and consuming energy on site; therefore, power sources must be in close proximity to users. Albeit neglected in the Modern Era, the most proximate and sustainable energy supply is directly available to us: sunlight. The origin of hot temperatures, discomfort and energy waste is, indeed, the most exploitable power generator men can access to. In Southern Europe or Middle East cities, the use of veils as urban-scale shading devices is part of the consolidated tradition; a well-known example can be found in the Spanish city of Sevilla, where textile curtains named “Sevillans” are stretched between buildings. At the present time, we’re witnessing that the climate mitigation action of shading systems can be pursued in combination with energy production, with the development of membrane integrated flexible photovoltaic cells (PV). Masdar City in the United Arab Emirates, designed by the Foster Studio, or the Solar trees of the German pavilion at EXPO 2015 in Milan and the Promenade of the EXPO 2021 in Dubai are some innovative yet relevant cases. The use of PV cells for sun-shielding purposes is optimal to respond to a double-sided problem with a single object. Manufacturing an adaptive velario using composite fibers (i-Mesh), could both allow us to design the shape and modulate the density of integrated PV cells as needed. Method: To identify the best position for the adaptive tensile canopies, it is necessary to superimpose different site-specific data: temperatures in the urban area, in particular close to buildings; surfaces that receive most of the daytime radiation; sunlight and ventilation. To develop the most suitable solutions to many environmental scenarios, three-dimensional simulations performed with virtual models must be used both at urban (Envimet) and at building scale (in-Sight). Expected results: An algorithm capable of determining the “Velari” best position and the proper shading/density factor. A model, applied to a case study in Rome, to serve an evaluation of the benefits of this technology in terms of decreasing surface temperatures of external horizontal and vertical surfaces of buildings and streets.
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Buschell, Mary K. "Servo-i Ventilator." In Manual of Neonatal Respiratory Care. Elsevier, 2006. http://dx.doi.org/10.1016/b978-032303176-9.50046-5.

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Conference papers on the topic "Servo ventilator"

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Woehrle, Holger, Martin R. Cowie, Karl Wegscheider, et al. "No effect of adaptive servo-ventilation (ASV) device used on outcomes in SERVE-HF." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.oa5177.

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Dewsbury, Elliott, James Shipley, Milind Sovani, and Arun Khanna. "How effective is Adaptive Servo Ventilation?" In ERS International Congress 2020 abstracts. European Respiratory Society, 2020. http://dx.doi.org/10.1183/13993003.congress-2020.2135.

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Woehrle, Holger, Eik Vettorrazzi, Karl Wegscheider, et al. "LATE-BREAKING ABSTRACT: Adaptive servo-ventilation (ASV) pressures and cardiovascular (CV) mortality risk in SERVE-HF." In ERS International Congress 2016 abstracts. European Respiratory Society, 2016. http://dx.doi.org/10.1183/13993003.congress-2016.pa2374.

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Salgueira, S., B. Conde, I. F. Silva, and A. I. Loureiro. "Adaptive Servo-Ventilation beyond Cheyne Stokes respiration." In Sleep and Breathing Conference 2025 abstracts. European Respiratory Society, 2025. https://doi.org/10.1183/23120541.sleepandbreathing-2025.138.

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Barleben, André, and Wolfram Grüning. "Late Breaking Abstract - Does adaptive servo ventilation lead to hypocapnia?" In ERS International Congress 2020 abstracts. European Respiratory Society, 2020. http://dx.doi.org/10.1183/13993003.congress-2020.4733.

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Tamisier, Renaud, Jean-Louis Pépin, Muriel Salvat, et al. "Adaptive servo-ventilation for central sleep apnea in systolic heart failure does not improve muscle sympathetic nerve activity: A SERVE-HF substudy." In ERS International Congress 2016 abstracts. European Respiratory Society, 2016. http://dx.doi.org/10.1183/13993003.congress-2016.pa2083.

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Avendano, G., F. Toncio, and P. Fuentes. "Design and construction of a real simulator for calibrating lung servo-ventilators." In 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010). IEEE, 2010. http://dx.doi.org/10.1109/iembs.2010.5626175.

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8

Eulenburg, Christine, Karl Wegscheider, Holger Woehrle, et al. "LATE-BREAKING ABSTRACT: Understanding SERVE-HF: A multistate analysis to explain mechanisms underlying increased mortality risk in patients randomised to adaptive servo-ventilation (ASV)." In ERS International Congress 2016 abstracts. European Respiratory Society, 2016. http://dx.doi.org/10.1183/13993003.congress-2016.oa1985.

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9

Alraiyes, Abdul Hamid, Patrick ". Thompson, and Supat Thammasitboon. "Biot's Respiration In A Chronic Opioid User: Improved With Adaptive-Servo Ventilation." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a5279.

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10

Woehrle, Holger, Raphael Heinzer, Oliver Munt, Jean-Louis Pèpin, Adam Benjafield, and Michael Arzt. "Usage of adaptive servo-ventilation (ASV): results from the READ-ASV registry." In ERS Congress 2024 abstracts. European Respiratory Society, 2024. http://dx.doi.org/10.1183/13993003.congress-2024.pa4477.

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Reports on the topic "Servo ventilator"

1

Backstrom, Robert, and David Dini. Firefighter Safety and Photovoltaic Systems Summary. UL Firefighter Safety Research Institute, 2011. http://dx.doi.org/10.54206/102376/kylj9621.

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Abstract:
Under the United States Department of Homeland Security (DHS) Assistance to Firefighter Grant Fire Prevention and Safety Research Program, Underwriters Laboratories examined fire service concerns of photovoltaic (PV) systems. These concerns include firefighter vulnerability to electrical and casualty hazards when mitigating a fire involving photovoltaic (PV) modules systems. The need for this project is significant acknowledging the increasing use of photovoltaic systems, growing at a rate of 30% annually. As a result of greater utilization, traditional firefighter tactics for suppression, ventilation and overhaul have been complicated, leaving firefighters vulnerable to potentially unrecognized exposure. Though the electrical and fire hazards associated with electrical generation and distribution systems is well known, PV systems present unique safety considerations. A very limited body of knowledge and insufficient data exists to understand the risks to the extent that the fire service has been unable to develop safety solutions and respond in a safe manner. This fire research project developed the empirical data that is needed to quantify the hazards associated with PV installations. This data provides the foundation to modify current or develop new firefighting practices to reduce firefighter death and injury. A functioning PV array was constructed at Underwriters Laboratories in Northbrook, IL to serve as a test fixture. The main test array consisted of 26 PV framed modules rated 230 W each (5980 W total rated power). Multiple experiments were conducted to investigate the efficacy of power isolation techniques and the potential hazard from contact of typical firefighter tools with live electrical PV components. Existing fire test fixtures located at the Delaware County Emergency Services Training Center were modified to construct full scale representations of roof mounted PV systems. PV arrays were mounted above Class A roofs supported by wood trusses. Two series of experiments were conducted. The first series represented a room of content fire, extending into the attic space, breaching the roof and resulting in structural collapse. Three PV technologies were subjected to this fire condition – rack mounted metal framed, glass on polymer modules, building integrated PV shingles, and a flexible laminate attached to a standing metal seam roof. A second series of experiments was conducted on the metal frame technology. These experiments represented two fire scenarios, a room of content fire venting from a window and the ignition of debris accumulation under the array. The results of these experiments provide a technical basis for the fire service to examine their equipment, tactics, standard operating procedures and training content. Several tactical considerations were developed utilizing the data from the experiments to provide specific examples of potential electrical shock hazard from PV installations during and after a fire event.
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2

Backstrom, Robert, and David Backstrom. Firefighter Safety and Photovoltaic Installations Research Project. UL Firefighter Safety Research Institute, 2011. http://dx.doi.org/10.54206/102376/viyv4379.

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Abstract:
Under the United States Department of Homeland Security (DHS) Assistance to Firefighter Grant Fire Prevention and Safety Research Program, Underwriters Laboratories examined fire service concerns of photovoltaic (PV) systems. These concerns include firefighter vulnerability to electrical and casualty hazards when mitigating a fire involving photovoltaic (PV) modules systems. The need for this project is significant acknowledging the increasing use of photovoltaic systems, growing at a rate of 30% annually. As a result of greater utilization, traditional firefighter tactics for suppression, ventilation and overhaul have been complicated, leaving firefighters vulnerable to potentially unrecognized exposure. Though the electrical and fire hazards associated with electrical generation and distribution systems is well known, PV systems present unique safety considerations. A very limited body of knowledge and insufficient data exists to understand the risks to the extent that the fire service has been unable to develop safety solutions and respond in a safe manner. This fire research project developed the empirical data that is needed to quantify the hazards associated with PV installations. This data provides the foundation to modify current or develop new firefighting practices to reduce firefighter death and injury. A functioning PV array was constructed at Underwriters Laboratories in Northbrook, IL to serve as a test fixture. The main test array consisted of 26 PV framed modules rated 230 W each (5980 W total rated power). Multiple experiments were conducted to investigate the efficacy of power isolation techniques and the potential hazard from contact of typical firefighter tools with live electrical PV components. Existing fire test fixtures located at the Delaware County Emergency Services Training Center were modified to construct full scale representations of roof mounted PV systems. PV arrays were mounted above Class A roofs supported by wood trusses. Two series of experiments were conducted. The first series represented a room of content fire, extending into the attic space, breaching the roof and resulting in structural collapse. Three PV technologies were subjected to this fire condition – rack mounted metal framed, glass on polymer modules, building integrated PV shingles, and a flexible laminate attached to a standing metal seam roof. A second series of experiments was conducted on the metal frame technology. These experiments represented two fire scenarios, a room of content fire venting from a window and the ignition of debris accumulation under the array. The results of these experiments provide a technical basis for the fire service to examine their equipment, tactics, standard operating procedures and training content. Several tactical considerations were developed utilizing the data from the experiments to provide specific examples of potential electrical shock hazard from PV installations during and after a fire event.
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